CVE-2023-30844 Mutagen list and monitor operations do not neutralize control characters in text controlled by remote endpoints
Attackers can inject control characters via remote endpoints to corrupt terminals or potentially execute code in Mutagen synchronization tools.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-30844?
CVE-2023-30844 is a low-severity vulnerability in mutagen-io mutagen, published on 8 May 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Mutagen provides real-time file synchronization and flexible network forwarding for developers. Prior to versions 0.16.6 and 0.17.1 in `mutagen` and prior to version 0.17.1 in `mutagen-compose`, Mutagen `list` and `monitor` commands are susceptible to control characters that could be provided by remote endpoints. This could cause terminal corruption, either intentional or unintentional, if these characters were present in error messages or file paths/names. This could be used as an attack vector if synchronizing with an untrusted remote endpoint, synchronizing files not under control of the user, or forwarding to/from an untrusted remote endpoint. On very old systems with terminals susceptible to issues such as CVE-2003-0069, the issue could theoretically cause code execution. The problem has been patched in Mutagen v0.16.6 and v0.17.1. Earlier versions of Mutagen are no longer supported and will not be patched. Versions of Mutagen after v0.18.0 will also have the patch merged. As a workaround, avoiding synchronization of untrusted files or interaction with untrusted remote endpoints should mitigate any risk.
Which versions are affected by CVE-2023-30844?
8 open source packages ship an affected version, including github.com/mutagen-io/mutagen and github.com/mutagen-io/mutagen-compose. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
github.com/mutagen-io/mutagen Go | All versions | 0.16.6, 0.17.1 |
github.com/mutagen-io/mutagen Go | All versions | 0.16.6 |
github.com/mutagen-io/mutagen Go | All versions | 0.16.6 |
github.com/mutagen-io/mutagen Go | From 0.17.0 | 0.17.1 |
github.com/mutagen-io/mutagen Go | From 0.17.0 | 0.17.1 |
github.com/mutagen-io/mutagen-compose Go | All versions | 0.17.1 |
2 more packages
github.com/mutagen-io/mutagen-compose Go | All versions | 0.17.1 |
github.com/mutagen-io/mutagen-compose Go | All versions | 0.17.1 |
Products include Mutagen Mutagen, Mutagen Mutagen Compose.
How do I fix CVE-2023-30844?
Upgrade github.com/mutagen-io/mutagen to a fixed version for your release line: 0.16.6 or 0.17.1.
Is CVE-2023-30844 being exploited?
There is no known exploitation of CVE-2023-30844 in the wild and no public exploit code.
Sources
Also known as GHSA-jmp2-wc4p-wfh2, GO-2023-1764.